add_subdirectory(1-Nil)
add_subdirectory(2-Boolean)
add_subdirectory(3-Integers)
add_subdirectory(4-Floats)
add_subdirectory(5-Strings)
add_subdirectory(6-Nested)
add_subdirectory(7-ManyArguments)
add_subdirectory(8-OptionalAN)
